<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        var name1=prompt('请输入姓名：');
        if(name1=='彭于晏'){
            alert('中奖啦！中了5块！')
        }
        else{
            alert('你没有中奖！')
        }
    </script>
</head>
<body>
    
</body>
</html>